package demo;

import java.util.HashSet;
import java.util.Set;

//Day07
public class Day17001 {
    public static void main(String[] args) {
        double[] arr={2.2,5.5,6.6,2.2,8.8,1.1,2.2,8.8,5.5,2.2,6.6};
        Set<Double> set=new HashSet<>();
        for (double d:
             arr) {
            set.add(d);
        }
        System.out.println(set);
    }
}
